Perencanaan Struktur Komposit Baja-Beton Dengan Metode Lrfd (Load And Resistance Factor Design) Ruang Kelas Lantai Iii Smk Pariwisata Labuan Bajo – Flores – Ntt

Abstract

Planning a steel-concrete composite structure using the LRFD (Load and Resistance Factor Design) method is a method that clearly takes into account the boundary conditions, various load factors, and resistance factors, where in this case the resistance factor is needed to maintain the possible lack of structural strength, while the factor load is used to anticipate the possibility of an overload that is formulated. This planning uses a composite structure that is focused on profile steel beams, steel deck plates, and composite columns. Dead and live loads are calculated based on the Indonesian loading regulations for 1983 buildings, while earthquake loads are calculated based on the earthquake resistance planning procedure for building and non-building structures as stipulated in SNI 1762-2012. The steel-concrete composite structure itself is calculated based on the specifications for the design of steel structure buildings using the LRFD method as stated in SNI 03-1729-2002. The structural analysis in the form of the magnitude of the force acting on the building was carried out using the SAP2000 application while the analysis of the feasibility of using the dimensions of the composite structure based on the SNI used was done manually. From the planning results, the dimensions of beam and column cross-sections for each floor plate 1, 2 and 3 are B1 250/250, B2 250/175, B3 300/150, and K1 350/350. The use of steel decks on floor plates 1, 2, and 3 uses shear connectors (studs) with a diameter of 19 mm with 40, 20, and 25 shear connectors, respectively. The joints used in the main and child beams on floors 1, 2, and 3 respectively use 19 mm diameter bolts with 4 bolts, 2 bolts, and 4 bolts respectively, while the connections to columns and beams use diameter bolts 20 mm with the number of bolts 8 pieces.